Question

How big does an island have to be to be considered an island?

Answer 1

Explanation:

The Millennium Ecosystem Assessment, for example, defines islands as “lands isolated by surrounding water and with a high proportion of coast to hinterland”; stipulates that they must be populated, separated from the mainland by a distance of at least two kilometres, and measure between 0.15 square kilometres

Answer 2

Answer:

not sure but maybe at least two kilometres, and measure between 0.15 square kilometres

but you can search on internet for more infos..